The big news of Mac OS X 10.6.6's release is clearly the Mac App Store, but that's not the only change that came in the latest version of Snow Leopard. In addition, Apple nipped a pair of bugs and closed a security hole.

Apple notes exactly two fixes in its release notes for 10.6.6: one that fixes a cropping problem with some PostScript printing in landscape mode and another that resolves an issue with ATI graphics card-powered Macs where connecting an external DVI display could yield erratic mouse pointer movement.

In addition, the update patches a single security vulnerability related to the PackageKit system, preventing a man-in-the-middle attack that could force the app to quit or potentially execute arbitrary code.

Apple also updated Mac OS X Server to 10.6.6, which includes all of the above fixes as well as a DNS resolution problem: the software will now properly resolve a DNS alias that points to a host in a .local domain.

As always, Apple recommends the updates for all users running Snow Leopard; and you can download them via Software Update or from Apple's support downloads site.

Dan has been writing about all things Apple since 2006, when he first started contributing to the MacUser blog. Since then he's covered most of the company's major product releases and reviewed every major revision of iOS. In his "copious" free time, he's usually grinding away on a novel or two.